}}DefaultBackoffStrategy在SocketTimeoutException或者ConnectException的时候返回true，或者在response code为429或者503..., final HttpClientContext context, final HttpExecutionAware execAware) throws IOException...HttpException) { throw (HttpException) ex; } if (ex instanceof IOException...) { throw (IOException) ex; } throw new UndeclaredThrowableException...HttpClient的DefaultBackoffStrategy在SocketTimeoutException或者ConnectException的时候返回true，或者在response code为429或者503
一、分析问题背景 HttpRetryException异常通常发生在以下场景： 当客户端发送HTTP请求到服务器时，服务器返回了一个可重试的响应码（如503 Service Temporarily Unavailable...} finally { try { httpClient.close(); } catch (IOException...e.printStackTrace(); } } } } 二、可能出错的原因 服务器返回可重试的响应码：当服务器返回503...= new HttpRequestRetryHandler() { @Override public boolean retryRequest( IOException...if (exception instanceof InterruptedIOException) { // 如果是中断异常，通常不重试 return
been * unsuccessfully executed * @param context the context for the request execution * @return...其构造器接收maxRetries(默认1)及retryInterval(单位毫秒，默认1s)；retryRequest方法在executionCount小于等于maxRetries且statusCode=503..., final HttpClientContext context, final HttpExecutionAware execAware) throws IOException...其构造器接收maxRetries(默认1)及retryInterval(单位毫秒，默认1s)；retryRequest方法在executionCount小于等于maxRetries且statusCode=503...的时候返回true；ServiceUnavailableRetryExec则使用ServiceUnavailableRetryStrategy完成了针对503的重试。
* @return 时间从现在纳秒，直到下一次尝试。...package feign; import java.util.Date; /** * 当引发此异常Response被认为是可重试，通常经由feign.codec.ErrorDecoder当status是503...retryAfter.getTime() : null; } /** * http->503 服务不可用 * 有时对应于Util.RETRY_AFTER存在于报头503的状态。...cause) errorStatus(String methodKey, Response response) errorExecuting(Request request, IOException...errorExecuting(Request request, IOException cause) { return new RetryableException( format
ioException) { Output($"Move file fail....downloadEntry.FilePath)) { // 移动成功了，返回就可以了，不用再处理了 return...; // 业务代码里面不一定可以用 return 哦，调用了 return 将会结束方法了哦 } else...origin https://gitee.com/lindexi/lindexi_gd.git git pull origin a3b5ce1d8dcc08cdc2d23e436e6fb477f1fac503...origin https://github.com/lindexi/lindexi_gd.git git pull origin a3b5ce1d8dcc08cdc2d23e436e6fb477f1fac503
) public String longResp() throws InterruptedException { TimeUnit.SECONDS.sleep(120); return...503(相对少见) 定义 503表示service unavailable，表示服务器当前处于暂时不可用状态，无论是有意还是无意，当服务器端处于无法应答的状态时，就会返回该状态码。...常见原因 nginx进行限流，超过限速则返回503 后端服务进行常规维护，比如pause tomcat nginx限流返回503实例 config http{ ## test 503 limit_conn_zone...> socketWrapper) throws IOException { RequestInfo rp = request.getRequestProcessor();...通常是nginx限流或后端服务pause进行维护 doc Nginx状态码总结 nginx错误502，503，504分析 Nginx 502 503 错误触发条件与解决办法汇总
(useTimeout) { endWait = System.currentTimeMillis(); timeToWait -= (endWait - startWait); } } } } } return...于是发现了 Transport error: 503 Error: Service Unavailable 这个异常 直接进入源码 /** * Used to handle the HTTP Response...msgContext - The MessageContext of the message * @param method - The HTTP method used * @throws IOException...exception occurs */ private void handleResponse(MessageContext msgContext, HttpMethodBase method) throws IOException...到此可知服务告警原因： 因为服务端发生了我们未知的操作，导致客户端获取请求时的返回码为503而占用了所有的当前主机连接数（2个）而不会释放重置为空闲连接放入连接池 于是后续连接从连接池获取连接时均超时抛出异常
id, ModelMap model) { Blog blog = blogService.getById(id); model.addAttribute("blog",blog); return...fwriter = new FileWriter(filePath, false); fwriter.write(content); } catch (IOException...try { fwriter.flush(); fwriter.close(); } catch (IOException...location = /500.html { root /usr/local/openresty/nginx/html; } error_page 500 502 503...504 = /503/503.html; location / { proxy_pass http://127.0.0.1:8080; } location
ddd @GetMapping("/feign/echo/{message}") public String feignEcho(@PathVariable String message) { return...其实就是在执行上图的正常执行部分，遇到了java.io.IOException的时候，就会抛这种RetryableException。...static FeignException errorExecuting(Request request, IOException cause) { return new RetryableException...是服务端返回的http header中包含了Retry-After这个header的时候： 这个header一般是在503的时候返回： 根据模版创建请求 大家看看我们的接口，用了path variable...3处会判断，如果没获取到实例，此时就会报503了，服务实例不存在。 这里面，获取实例的部分，比较复杂，我们得单独开一篇来讲。 发起真实请求 根据服务实例，组装真实的url进行请求。
oConvertUtils.listIsEmpty(datas)) { log.info("Excel中没有数据"); throw new ApiException(503...= FieldFill.UPDATE)); return methodList; } } @Configuration public class MybatisPlusConfig...* @throws IOException */ @PostMapping("upload") @ResponseBody public Result upload(MultipartFile...file) throws IOException { return sysTestService.upload(file); } } @Override...public Result upload(MultipartFile file) throws IOException { ExcelListener<SysTestEntityy
. */ protected boolean statusDropsConnection(int status) { return status == 400 /* SC_BAD_REQUEST...SC_REQUEST_URI_TOO_LONG */ || status == 500 /* SC_INTERNAL_SERVER_ERROR */ || status == 503...* * @throws IOException An underlying IOException occurred */ @Override public...void close() throws IOException { if (closed) { return; }...if (suspended) { return; } // If there are chars, flush all of them to the
批量导入用户") @PostMapping("/loadtocreate") public ResultVO loadtocreate(MultipartFile file) throws IOException...extensionName.equals("xlsx")) { return new ResultVO(211, "批量导入请上传excel表格文件"); }...@Override public void download(List queryAll, HttpServletResponse response) throws IOException...public static void downloadExcel(List> list, HttpServletResponse response) throws IOException...); //设置整图圆角（输出格式必须为PNG） //头像（圆角设置一定的大小，可以把头像变成圆的） combiner.addImageElement(avatar, 503
from tbl_department where id=#{id} 进行测试： package com.gong.mybatis.test; import java.io.IOException...com.gong.mybatis.dao.EmployeeMapperPlus; public class TestMybatis2 { public SqlSessionFactory getSqlSessionFactory() throws IOException...resource = "mybatis-config.xml"; InputStream is = Resources.getResourceAsStream(resource); return...new SqlSessionFactoryBuilder().build(is); } @Test public void test() throws IOException...openSession.close(); } } } 首先测试的是gender=0的情况： DEBUG 01-20 20:47:37,503
接口说明可以参考 https://ai.baidu.com/docs#/Body-API/2757b503 基于现有sdk版本进行 实现此接口调用 调用前请自行确认是否已经找梅姐申请了接口权限哦 使用Maven...com.baidu.aip.util.Base64Util; import com.baidu.aip.util.Util; import org.json.JSONObject; import java.io.IOException...} request.setUri(HAND_ANALYSIS); postOperation(request); return...requestServer(request); } catch (IOException e) { e.printStackTrace();...return AipError.IMAGE_READ_ERROR.toJsonResult(); } } } 准备一个手掌图片 小帅离而立还有很久。
false; } return true; } 3....} } if (endpoint.isPaused()) { // 503...- Service unavailable response.setStatus(503); setErrorState...(ServletRequest request, ServletResponse response) throws IOException...void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
> socketWrapper, SocketEvent status) throws IOException { SocketState state = SocketState.CLOSED;...> socketWrapper) throws IOException { RequestInfo rp = request.getRequestProcessor();...} } if (protocol.isPaused()) { // 503...- Service unavailable response.setStatus(503); setErrorState...protocol.getConnectionUploadTimeout()); } } } catch (IOException
> socketWrapper) throws IOException { RequestInfo rp = request.getRequestProcessor();...SC_REQUEST_URI_TOO_LONG */ || status == 500 /* SC_INTERNAL_SERVER_ERROR */ || status == 503...> socketWrapper) throws IOException { RequestInfo rp = request.getRequestProcessor();...* * @throws IOException If an exception occurs during the underlying socket * read operations...parseRequestLine(boolean keptAlive, int connectionTimeout, int keepAliveTimeout) throws IOException
代码如下所示： package com.jacksonTest; import com.fasterxml.jackson.databind.ObjectMapper; import java.io.IOException...1099/Exploit\"]"; try { mapper.readValue(payload, Object.class); } catch (IOException...相关类确定： https://github.com/kishorkunal-raj/jackson-databind/blob/5f4148e6c083529a2d12c6dc986b07a03850f503
fetch_url(url): try: response = requests.get(url) response.raise_for_status() return...fetch_url(url): try: response = requests.get(url) response.raise_for_status() return...Windows NT 10.0; Win64; x64; rv:88.0) Gecko/20100101 Firefox/88.0"]def get_proxy(): """获取认证代理""" return...max_retries=retry_strategy) session.mount("http://", adapter) session.mount("https://", adapter) return...response.raise_for_status() print(f"成功获取: {url} [状态码: {response.status_code}]") return
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